#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>


int main(void){
	printf("'0'=%d\n",'0');

	char buf[30]={0};
	

	int a=65;
	write(1,&a,sizeof(65));
	write(1,"\n",1);
	buf[0]=a/10+'0';
	buf[1]=a%10+'0';

	write(1,buf,strlen(buf));

	write(1,"\n",1);



	return 0;
}